HydroCAD Stormwater Modeling - Since 1986

HydroCAD Supports
Prinsco Stormwater Storage Solutions

HydroCAD provides full support for the stormwater storage products offered by Prinsco, Inc. including HydroStor stormwater chambers and all dual-wall pipe products including GoldFlo, GoldFlo WT, EcoFlo 100  and GoldPro Storm.

This partnership allows Prinsco products to be easily used within any HydroCAD model for stormwater storage, detention, or infiltration.  HydroCAD includes complete Prinsco storage definitions, plus an interactive chamber wizard for easy layout, pricing, and modeling of underground storage systems.

Prinsco pipe products are supported in HydroCAD-10 "build 4" or later.  To model the latest Prinsco chamber products (including the HS31, HS75, HS180, and HS290) make sure you're using HydroCAD-10.1 release 6 or later.  Details here.

How storage is modeled

Stormwater storage typically appears in a HydroCAD model as part of the storage definition for a "pond".  In the simplest case, HydroCAD calculates the total available storage, including the interior of the chambers (pipes), plus the void space in any surrounding stone.  For a more complete analysis, a full stage-storage curve is calculated so that an inflow or runoff hydrograph can be routed through the pond.  The resulting analysis indicates the water levels attained throughout the rainfall event, as well as any discharge that may occur through outlet devices or infiltration into the surrounding ground.

Flexible storage options

Each HydroCAD pond may include an unlimited number of storage definitions as required to describe its overall storage characteristics.  This makes it easy to model complex storage arrangements, such as a combination of multiple chambers, catch basins, or other contributing volumes.

But the most significant feature is the ability to embed (bury) chambers in a bed of stone, and have HydroCAD automatically calculate the combined storage at any water surface elevation.  This makes it easy to determine the storage for virtually any configuration of storage chambers, without resorting to any manual calculations.

Click for complete self-training materialsHydroCAD can also model almost any imaginable storage arrangement, including layered chambers of different sizes combined with auxiliary storage from adjacent pipes and catch basins, and even the above-ground areas (parking lot) that may provide overflow storage for certain events.

Using Prinsco stormwater products

Setting up a pond to use Prinsco chambers or pipe storage is a simple process:  Just pick the desired product and size from the drop-down lists, and specify the number of chambers (pipe lengths) plus their elevation.  The HydroCAD chamber wizard automatically calculates the overall size of the system based on the manufacturer's recommendations, or you can customize the layout to suit your specific requirements.

Technical notes

The HydroCAD definitions for Prinsco dual-wall pipe are based on the actual inside diameter and displacement as listed here.

For further technical information, read about modeling corrugated plastic pipe and prefab chambers.

Detailed product information

For detailed Prinsco specifications and design information, please visit the Prinsco web site.

For more information about HydroCAD

Please see the following pages for further HydroCAD information:

    HydroCAD home page
    Pond storage calculations
    Storage chamber modeling  (includes step-by-step instructions)
    Exfiltration calculations
    General support page
    HydroCAD features and capabilities
    Free evaluation program
    Pricing and ordering

GoldFlo, GoldFlo WT, EcoFlo, and HydroStor 100 are registered trademark of Prinsco Inc.
HydroCAD is a registered trademark of HydroCAD Software Solutions LLC
Product illustrations Prinsco Inc.


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